Home / 409,175.64-564,640.40-225,408.18

Finding the Fourth Proportional to 409,175.64, 564,640.40 and 225,408.18

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Solution

The fourth proportional to 409,175.64, 564,640.40 and 225,408.18 is: 311,051.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,175.64 : 564,640.40 = 225,408.18 : x
  2. Step 2: Convert to fraction form
    409,175.64/564,640.40 = 225,408.18/x
  3. Step 3: Cross multiply
    409,175.64x = 564,640.40 × 225,408.18
  4. Step 4: Simplify right side
    409,175.64x = 127,274,564,918.47
  5. Step 5: Solve for x
    x = 127,274,564,918.47/409,175.64
  6. Step 6: Final answer
    x = 311,051.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.